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N,N′-Dimethylpiperazinium(2+) bis[methylenehydrogendiphosphonate(1-)]

Lookup NU author(s): Zhanhui Yuan, Professor William Clegg

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Abstract

The asymmetric unit of the title compound, C6H 16N22+-2(HO)2(O)PCH 2P(O)2(OH)-, contains two singly charged diphosphonate anions and two half-cations, each doubly charged cation lying on an inversion centre. Single deprotonation of methylenediphosphonic acid to give a salt with an organic amine is unprecedented, double deprotonation being normal. All N-H and O-H groups act as ydrogen-bond donors in the crystal structure, with unprotonted O atoms as the acceptors, giving a three-dimensional network. © 2005 International Union of Crystallography Printed in Great Britain - all rights reserved.

Publication metadata

Author(s): Yuan Z, Clegg W

Publication type: Article

Publication status: Published

Journal: Acta Crystallographica Section E: Structure Reports Online

Year: 2005

Volume: 61

Issue: 8

Pages: o2635-o2637

ISSN (print): 1600-5368

ISSN (electronic):

Publisher: Wiley-Blackwell Publishing, Inc.

URL: http://dx.doi.org/10.1107/S16005368050227371107

DOI: 10.1107/S1600536805022737

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